USB: Fix debugfs_create_file's error checking method for usb/gadget/s3c2410_udc
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index 48f51b1..00ba06b 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1894,11 +1894,8 @@
udc->regs_info = debugfs_create_file("registers", S_IRUGO,
s3c2410_udc_debugfs_root,
udc, &s3c2410_udc_debugfs_fops);
- if (IS_ERR(udc->regs_info)) {
- dev_warn(dev, "debugfs file creation failed %ld\n",
- PTR_ERR(udc->regs_info));
- udc->regs_info = NULL;
- }
+ if (!udc->regs_info)
+ dev_warn(dev, "debugfs file creation failed\n");
}
dev_dbg(dev, "probe ok\n");